Comment by Angelcrusher

Comment by pyro76

I just discovered this with minor research, so apparently they stealth added this in patch 3.0.8. Previously, I had learned every minor glyph, so it's definitely new. At least I didn't see it mentioned anywhere in the patch notes. It is probably safe to assume the other knockback spell glyphs got added too.

Comment by Teegra

Yes, but does BW still stun the mobs?

Comment by Maliander

This glyph used to be a minor glyph and is thus still learned from .

This glyph and the spell it affects has undergone major changes in the last two expansions:

Patch 5.0.4 (MoP), Glyph of Remove Curse (major):Gives the damage done by the mage a 10% boost for 10 seconds after sucessfully using Remove Curse to remove a curse. If curse removal in PvE content is as rare in MoP as it was in Cataclysm, this is not likely to be a very popular glyph, but if there are encounters that do require decursing it can help offset the damage lost by spending a GCD on removing the curse. For PvP, control, survivability or burst improving glyphs are likely to be more popular.

Patch 4.0.3 (Cataclysm), Glyph of Blast Wave (major)Increases the daze effect of from 3 to 4 seconds. Blast Wave was a fire-spec exclusive ranged AoE which caused damage and a daze. Although only a small increase in daze duration, there were not many major glyph alternatives for fire mages so it was still a decent choice.

Patch 3.0.8 (WotLK), Glyph of Blast Wave (minor)Reduces the mana cost of Blast Wave by 15% and removed its knockback. Blast Wave was then a fire-spec point blank AoE spell that knocked back and dazed enemies near the mage. Since knockbacks are often undesired in PvE content, this glyph was added shortly after the release of WotLK to remove the knockback component.

Comment by PriestessAur

In Mists of Pandaria this glyph has changed.

OLD: Glyph of Blast Wave - Increases the duration of Blast Wave's slowing effect by 1 sec.NEW: Glyph of Remove Curse - Increases the damage you deal by 10% for 10 sec after you successfully remove a curse.